VHV5 Read Cycles
An explanation of the different read cycles for the VHV5
This article gives an overview of the different read cycle types for the VHV5 Code Reader.
Triggered Mode
The Triggered read cycle is the most common type of Read Cycle and offers the user the highest level of control. Upon input of a trigger signal the reader will acquire an image and attempt to read any codes presented.
Once the processing of the image is complete the code reader data is output.
Continuous Mode
The reader will start acquiring images automatically upon Run Mode activation and attempts to read any codes presented in the captured images. The reader will continue acquire and process until a part enters the field of view and it is able to achieve a successful reading. Only a successful read will end the Continuous read cycle.
At the end of the Cycle, the data is output, and then the next read cycle is started automatically, again waiting for a part to pass in front of the reader.
Noteworthy
Continuous will read the same codes over and over in this mode until the part is moved out of the field of view.
Start/Stop Mode
As in Triggered mode, the Read Cycle is started with an Input Signal. By default the reader acquires images continuously and attempts to decode while the trigger is held in the on state. If a decode is successful, it sends the data out immediately (or after the Stop signal, depending on user configuration)
The read cycle ends when the reader is sent a Stop Trigger signal. The user may also set Iterations Mode to Fixed to limit how many times the reader cycles through the Capture List
Noteworthy
For Start/Stop mode, it is recommended to set the Debounce Time under Camera Settings in the Device View to greater than (20 msec + Exposure Time) for the 2.3 MP camera, and greater than (30 msec + Exposure Time) for the 5 MP. Failure to do so can result in the Start/Stop signals getting out of sync.